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CVE-2026-34532

CVE-2026-34532 · Parse Server: Cloud function validator bypass via prototype chain traversal

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.constructor" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.

CVSS 9.1 · Critique · EPSS 0,3% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • parse-server

    Versions du logiciel
    • < 8.6.67: Concernée
    • >= 9.0.0, < 9.7.0-alpha.11: Concernée

    Aucun correctif publié

  • parse-server npm

    Plages de versions concernées
    • SEMVER: ≥ 9.0.0, < 9.7.0-alpha.11

    Mettez à jour vers 9.7.0-alpha.11

  • parse-server npm

    Plages de versions concernées
    • SEMVER: < 8.6.67

    Mettez à jour vers 8.6.67

Sources originales

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